Video capturing in DM8148 EVM at lower resolution

debasish saha1

Other Parts Discussed in Thread: TVP7002

Hi,

I am using the DM8148 EVM and I want to capture video at 720x576i at 60 fps through the VIP port. I am having the following query

1) Do I need to modify the VPSS firmware to capture enable capturing at 720x576i? If no then will the VPSS support all standard resolution up to 1920x1080p?

2) In the TI81XX PSP 04.04.00.02 there is a loop-back application saLoopBack in src/example/video, can that application be used for loop-back at 720x576i?

Regards,

Debasish

over 11 years ago

0 Margarita Gashova over 11 years ago

TI__Guru* 80190 points

Hello,

debasish saha1 said:
2) In the TI81XX PSP 04.04.00.02 there is a loop-back application saLoopBack in src/example/video, can that application be used for loop-back at 720x576i?

The saLooBack is using input through TVP7002 decoder on VPSS VIP port. Capture buffers are displayed using V4L2 display driver.

http://processors.wiki.ti.com/index.php/TI81XX_PSP_VIDEO_CAPTURE_Driver_User_Guide You need to modify tvp driver at Linux kernel source $(Linux_Source)/drivers/media/tvp7002.c.
Best Regards,
Margarita

0 debasish saha1 over 11 years ago in reply to Margarita Gashova

Intellectual 920 points

Hello Margarita,

Thanks for the quick reply. I am having one more query , do I need to modify the VPSS firmware to capture enable capturing at 720x576i?

Thanks again,

Regards,

Debasish

Processors

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Video capturing in DM8148 EVM at lower resolution